Polite English - Saying Yes and No

source: Learn English with Rebecca      2010年2月2日
http://www.engVid.com/ Did you know that the words "yes" and "no", when used alone, can make you sound rude and angry? In this lesson, you'll learn the secret of how to communicate these basic messages simply and politely. You can take a quiz on this English lesson athttp://www.engvid.com/polite-english-...